Punch/No PunchThere are two installation ways of punching and double-sided tape. If you don't want to damage your walls, you can use double-sided tape for bonding (no residue), so your walls will look new.Fits Most ThermostatsThe outer size of the thermostat guard with lock is 8.07''*4.72''*2.24'', and the inner size is 7''*4.5''*2'', suitable for most thermostats on the market. It can be used in home, office, church, school and industrial environment etc.Thermostat Guard with keyThermostat covers with 2 keys prevents tampering, damage and unauthorized adjustment of thermostat settings. Keep your controllers away from pesky finger, protecting your thermostat and avoid high bills.Clear SeenThis lock box for thermostat on wall is made of poly carbonate plastic, which is protective and clear seen.Long Service LifeClear thermostat lock box is better than clear thermostatic lock box made of plastic, it will not change color and yellow, and it can maintain the clear visibility of the inside even when long-term use.